Mixing device



E. K. MIDORIKAWA.

Feb. 13, 1923.

MIXING DEVICE.

11.50 NOV. 2,4921.

l'mvenwr m 7M g. M m 4 E T m w. W B

icy-e 11 is.

EDVZ ARD KOSO IVEIDORIKARVA, 0F 8 Application filed November 2, 1921.

All FRANCISCO, CALIFORNIA.

MIXING DEVICE.

To all whom z'tmay 007206772 KAWA, a citizen of residlng at the city a ClSCO and State of Be it known that I,

new and Devices, of which the licati on.

This invention rel d, part1cularly perta ing up solutions.

crushing member wh terialand cause it to thus forming a desired tion being The invention is illustrated by way of accompanying drawings in showing the It is a principal oloj ntion to provide a EDWARD Koso Mmonrthe Empire of Japan, nd county of San Franlifornia, have inventuset'ul Improvements in Mixing following is a speciates to a mixing device,

ins to means for minect of the present insimple stirring and ich is so constructed as readily crush granular or powdered mae mixed with a liquid,

solution, the invenparticularly applicable for use connection with solutions used in photography.

ample in the 1 Fig. 1 1s aview in vention Fig. 2 is an enlarged View in section ing the mounting of the formation of the lower section and elevation application of the present inshow stirring element;

Flg. 3 1s a View 111 elevation showing the element.

knob 12. Th

readily affected by example, hard rubbe case a remforcmg c ing formed with d The disc shaped k tion 11.

cesses 17. The 0 end of the stirring particularly to the drawdicates the stem of a pestle. The s stem is formed with an ped knob 11, while the upr end of the stem is formed with a smaller eierably made from c pestle thus constructed is material which is not chemical action as, for r, and the'like, in which ore 13 is embodied withthe center of the structure, this core beiscs at its opposite ends. nob 11 at the lower end the pestle is formed with a convened face 14. which is intended to rest against the bot tom of a solution container 15. .A series of passageways 16 are formed through the por- These passageways are counterred at their lower ends to provide the rethus form circulating tion and at the same whereby the granular substance may be held an do d crushed as the p wn or rocked on its ounter-bored passageways means for the solutime provide means estle is moved up or convened suri'ace.

Serial No. 512,213.

In order to obtain the best results the con tainer 15 is but slightly larger than the diameter of the disc 11, thus insuring that movement of the pestle will have the effect of crushing all of the granular material. At the same time some of the crystals will. be caught in the counterhores oft passageways 16, this permitting the crystals to be crushed and the circulating liquid to be strengthened. As will be understood, the pestle may he used alone or may be attached to the op crating arm 18, and will in this. manner be given additional pressure. The operating arm 18 carries a removable hinge section 19 which may be secured in position by a clamp bolt :20 and a wing nut 21. Adjacent portions 01? the lever 18 and the hinge member 19 are semi-circular in shape and receive pivoted shoes 22 and 23. These members are arcuate to conform to the opposite sides of the pestle stem 10.

It will thus be seen that the vertical oscillation of the lever 18 will cause the pestle to rise and tall, and at the same time will allow it to remain in a substantially vertically aligned position.

In the operatiton of the present invention, the pestle may be used without reference to the lever mechanism, in which instance either of the knobs 11 or 12 may be employed to crush the solid material. In the event that additional pressure is required the lever may be applied to the container and the hinge section 19 clamped around the stem of the pestle, as shown in Fig. 3. Fun ther operation may then be carried on.

The container as here shown is cylindrical and of a diameter slightly greater than the diameter of the disc of the pestle, in which. case the solution will be agitated and the solvent caused to circulate in a manner to produce a rapid dissolution of the chemicals. This is preferable although containers of other relative dimensions and designs may be used if desired.

It will thus be seen that due to the formation of the pestle, solid material may be readily crushed and reduced, and that the present invention contemplates the use of lower ends of said passageways ter-hored.

"ii. pestle comprising a stein, and an enlarged circular knob thereon having a convened end th re being a plurality oi tapered recesses formed in the converted face of the knob.

i pestle comprising a stem, and an enlarged circular lznoh thereof: having a convened end there being a plurality ot tapered recesses formed in the convened face of the knob and circular passageways through the knob and in connnunication with said recesses. ,7

5. A pestle comprising a stern, an enlarged relatively thick circular knob at one end of the stem provided with a relatively thin marginal perforated edge.

(5. A pestle formed With a central rigid core having disc shaped reinforcing incinhers at the opposite ends thereof; and knobs tor-med at the opposite ends of the pestle and surrounding said disc shaped reinforcements, one of said knobs being of larger di mensions than the other knob and havinga convexed crushing: face thereheing a plu rality of recesses formed in the inset face of said knob and circulating passageways extending from the recesses through the knob.

7. A pestle con'iprising narrowv stern, an enlarged circular knob at the lower end thereof, said knob having a convened outer surface and upon its inner surface gradually the upper end surtaceof to form a relatively thiclrknoh Whose marginal edge is relatively thin, the knob adjacent its marginal edge having a plurality of passage-Ways arranged incircularwseries therein.

EDWARD KOSO MIDORIKAWA.

the knob, whereby a relatively lon merging from the stem to' 

